In a large skillet over med heat, heat oilAdd onion and cook until soft.Add cabbage, garlic and apples. Cook stirring frequently for about 5 mins. until cabbage starts to wilt.Stir in orange juice, vinegar and sugar.Reduce heat, cover and simmer, stirring occasionally, for about 50 mins. until cabbage is soft and liquid has evaporated.Add salt & pepper to taste.